Allow shorter syntax for chroot stores

You can now say '--store /tmp/nix' instead of '--store local?root=/tmp/nix'.

1 files changed, 7 insertions, 3 deletions

diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc
index 17237a03541c..c57e42fec00d 100644
--- a/src/libstore/store-api.cc
+++ b/src/libstore/store-api.cc
@@ -843,7 +843,7 @@ StoreType getStoreType(const std::string & uri, const std::string & stateDir)
 {
     if (uri == "daemon") {
         return tDaemon;
-    } else if (uri == "local") {
+    } else if (uri == "local" || hasPrefix(uri, "/")) {
         return tLocal;
     } else if (uri == "" || uri == "auto") {
         if (access(stateDir.c_str(), R_OK | W_OK) == 0)
@@ -865,8 +865,12 @@ static RegisterStoreImplementation regStore([](
     switch (getStoreType(uri, get(params, "state", settings.nixStateDir))) {
         case tDaemon:
             return std::shared_ptr<Store>(std::make_shared<UDSRemoteStore>(params));
-        case tLocal:
-            return std::shared_ptr<Store>(std::make_shared<LocalStore>(params));
+        case tLocal: {
+            Store::Params params2 = params;
+            if (hasPrefix(uri, "/"))
+                params2["root"] = uri;
+            return std::shared_ptr<Store>(std::make_shared<LocalStore>(params2));
+        }
         default:
             return nullptr;
     }